Your young age at diagnosis is concerning for a familial or inherited predisposition for colorectal cancer. Currently, we can check for several colorectal cancer genetic syndromes, which include Lynch Syndrome [also called Hereditary Non-Polyposis Colorectal Cancer (HNPCC)] and FAP. You should discuss with your physician whether these tests are appropriate for you and, if you have a genetic predisposition, consider discussing whether the tests are appropriate for your children. Screening recommendations will depend on whether your family is affected by these conditions.